Allow selecting multi nodes without pressing extra keys

src/litegraph.d.ts

@@ -1142,6 +1142,8 @@ export declare class LGraphCanvas {
     allow_interaction: boolean;
     /** allows to change a connection with having to redo it again */
     allow_reconnect_links: boolean;
+    /** allow selecting multi nodes without pressing extra keys */
+    multi_select: boolean;
     /** No effect */
     allow_searchbox: boolean;
     always_render_background: boolean;